[Editor’s note: I’m excited to share this guest post from John W. Ellis of Crescent Interactive, a Nashville, Tennessee PPC and SEO consultancy. A successful hands-on practioner of SEO and PPC for more than a decade, John is a frequent blogger, article contributor, speaker and consultant able to empower companies seeking to improve and expand their online marketing efforts.]

For over 10 years, I have been managing PPC (per-per-click) advertising. By far the most utilized PPC resource has been Google AdWords. At Crescent Interactive, although we are familiar with multiple channels and platforms, we spend the vast majority of our time in Google Adwords.